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Selective Hydrogenation of 2-Methyl-3-butyn-2-ol in Microcapillary Reactor on Supported Intermetallic PdZn Catalyst, Effect of Support Doping on Stability and Kinetic Parameters. Catalysts 2022. [DOI: 10.3390/catal12121660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The development of active, selective, and stable multicrystalline catalytic coatings on the inner surface of microcapillary reactors addresses environmental problems of fine organic synthesis, in particular by reducing the large quantities of reagents and byproducts. Thin-film nanosized bimetallic catalysts based on mesoporous pure titania and doped with zirconia, ceria, and zinc oxide, for use in microreactors, were developed, and the regularities of their formation were studied. The efficiency of PdZn/TixM1−xO2±y (M = Ce, Zr, Zn) in the hydrogenation of 2-methyl-3-butyn 2-ol was studied with an emphasis on the stability of the catalyst during the reaction. The catalytic parameters depend on the adsorption properties and activity of PdZn and Pd(0) active centers. Under reaction conditions, resistance to the decomposition of PdZn is a factor that affects the stability of the catalyst. The zinc-doped coating proved to be the most selective and stable in the reaction of selective hydrogenation of acetylenic alcohols in a microcapillary reactor. This coating retained a high selectivity of 98.2% during long-term testing up to 168 h. Modification of the morphology and electronic structure of the active component, by doping titania with Ce and Zr, is accompanied by a decrease in stability.
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2
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Design, Heat Transfer, and Visualization of the Milli-Reactor by CFD and ANN. Processes (Basel) 2022. [DOI: 10.3390/pr10112329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
This paper proposes a milli-reactor design method incorporating reactor runaway criteria. Based on Computational Fluid Dynamic (CFD) simulation, neural networks are applied to obtain the optimal reactor structure according to the target reaction requirements. Varma’s theory, the critical Nusselt number for stable operation of the flow reactor, is derived. Inserts of the multi-blade structure are designed and investigated to enhance mixing and heat transfer performance. The flow field and heat transfer capacities are obtained by CFD calculations in the range of Re 50–1800. The internal components increase the heat transfer performance up to 21 times, and the pressure drop up to 16 times. The inclined angle of the blade is recommended to be 45°, which can effectively improve heat transfer without generating excessive pressure drop. By partial least squares regression (PLS) analysis, Re and the number of blades are the most critical factors affecting heat transfer, and the five blades and smaller tilt angles are recommended. The CFD calculation results are in good agreement with the Particle Image Velocimetry (PIV) experimental results.
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3
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Guo S, Zhu GK, Zhan LW, Li BD. Kinetics and safeties of 2-Ethyl-1-hexanol nitration in a capillary-microreactor. J Flow Chem 2022. [DOI: 10.1007/s41981-022-00240-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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4
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Okhlopkova LB, Kerzhentsev MA, Ismagilov ZR. Improved stability of catalytic coatings based on Zn-doped titania for selective hydrogenation of a triple bond in a microcapillary reactor. REACTION KINETICS MECHANISMS AND CATALYSIS 2022. [DOI: 10.1007/s11144-021-02146-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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5
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Asano S, Adams SJ, Tsuji Y, Yoshizawa K, Tahara A, Hayashi JI, Cherkasov N. Homogeneous catalyst modifier for alkyne semi-hydrogenation: systematic screening in an automated flow reactor and computational study on mechanisms. REACT CHEM ENG 2022. [DOI: 10.1039/d2re00147k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
21 types of modifiers are screened for palladium catalysed semi-hydrogenation of alkynes with varying catalyst type, reaction time, and target substrate using an automated flow reactor system.
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Affiliation(s)
- Shusaku Asano
- Institute for Materials Chemistry and Engineering, Kyushu University, Kasuga 816-8580, Japan
| | - Samuel J. Adams
- Stoli Chem, Prince Phillip Building, Wellesbourne, CV35 9 EF, UK
| | - Yuta Tsuji
- Institute for Materials Chemistry and Engineering, Kyushu University, Kasuga 816-8580, Japan
| | - Kazunari Yoshizawa
- Institute for Materials Chemistry and Engineering, Kyushu University, Kasuga 816-8580, Japan
| | - Atsushi Tahara
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai 980-8578, Japan
| | - Jun-ichiro Hayashi
- Institute for Materials Chemistry and Engineering, Kyushu University, Kasuga 816-8580, Japan
| | - Nikolay Cherkasov
- Stoli Chem, Prince Phillip Building, Wellesbourne, CV35 9 EF, UK
- School of Engineering, University of Warwick, Coventry CV4 7AL, UK
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6
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Okhlopkova LB, Kravchenko KA, Kerzhentsev MA, Ismagilov ZR. Selective Catalytic Hydrogenation of Triple Bonds in Acetylenic Alcohols in a Microcapillary Reactor for Processes of Fine Organic Synthesis. CATALYSIS IN INDUSTRY 2021. [DOI: 10.1134/s2070050421040073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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8
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Navarro-Fuentes F, Keane MA, Ni XW. Continuous Hydrogenation of Alkynol in a Continuous Oscillatory Baffled Reactor. Org Process Res Dev 2021. [DOI: 10.1021/acs.oprd.0c00458] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Francisca Navarro-Fuentes
- EPSRC Centre for Continuous Manufacturing and Crystallization (CMAC), Centre for Oscillatory Baffled Applications (COBRA), School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K
| | - Mark Andrew Keane
- EPSRC Centre for Continuous Manufacturing and Crystallization (CMAC), Centre for Oscillatory Baffled Applications (COBRA), School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K
| | - Xiong-Wei Ni
- EPSRC Centre for Continuous Manufacturing and Crystallization (CMAC), Centre for Oscillatory Baffled Applications (COBRA), School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K
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9
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Cherkasov N, Murzin DY, Catlow CRA, Chutia A. Selectivity of the Lindlar catalyst in alkyne semi-hydrogenation: a direct liquid-phase adsorption study. Catal Sci Technol 2021. [DOI: 10.1039/d1cy01016f] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Pd catalysts contain active sites that strongly adsorb alkyne and alkene molecules. The presence of the latter, alkene sites, defines the low semi-hydrogenation selectivity.
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Affiliation(s)
- Nikolay Cherkasov
- School of Engineering, University of Warwick, Coventry, CV4 7AL, UK
- Stoli Catalysts Ltd, Wellesbourne Campus, Wellesbourne, Coventry, CV35 9EF, UK
| | - Dmitry Yu. Murzin
- Laboratory of Industrial Chemistry and Reaction Engineering, Process Chemistry Centre, Åbo Akademi University, FI-20500, Turku/Åbo, Finland
| | - C. Richard A. Catlow
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, Wales, UK
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1 HOAJ, UK
| | - Arunabhiram Chutia
- School of Chemistry, University of Lincoln, Brayford Pool, Lincoln, LN6 7TS, UK
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10
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Boffito DC, Fernandez Rivas D. Process intensification connects scales and disciplines towards sustainability. CAN J CHEM ENG 2020. [DOI: 10.1002/cjce.23871] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Daria C. Boffito
- Chemical Engineering Department Canada Research Chair in Intensified Mechano‐Chemical Processes for Sustainable Biomass Conversion, Polytechnique Montréal Montréal Québec Canada
| | - David Fernandez Rivas
- Mesoscale Chemical Systems Group, MESA+ Institute and Faculty of Science and Technology University of Twente Enschede The Netherlands
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11
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Design, Fundamental Principles of Fabrication and Applications of Microreactors. Processes (Basel) 2020. [DOI: 10.3390/pr8080891] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
This study highlights the development of small-scale reactors, in the form of microstructures with microchannel networking. Microreactors have achieved an impressive reputation, regarding chemical synthesis ability and their applications in the engineering, pharmaceutical, and biological fields. This review elaborates on the fabrication, construction, and schematic fundamentals in the design of the microreactors and microchannels. The materials used in the fabrication or construction of the microreactors include silicon, polymer, and glass. A general review of the application of microreactors in medical, biological, and engineering fields is carried out and significant improvements in these areas are reported. Finally, we highlight the flow patterns, mixing, and scaling-up of multiphase microreactor developments, with emphasis on the more significant industrial applications.
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12
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Navarro‐Fuentes F, Keane M, Ni X. The effects of modes of hydrogen input and reactor configuration on reaction rate and H
2
efficiency in the catalytic hydrogenation of alkynol to alkenol. CAN J CHEM ENG 2019. [DOI: 10.1002/cjce.23615] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Francisca Navarro‐Fuentes
- EPSRC Centre for Continuous Manufacturing and Crystallization (CMAC), Centre for Oscillatory Baffled Applications (COBRA), School of Engineering and Physical SciencesHeriot‐Watt University Edinburgh UK
| | - Mark Keane
- EPSRC Centre for Continuous Manufacturing and Crystallization (CMAC), Centre for Oscillatory Baffled Applications (COBRA), School of Engineering and Physical SciencesHeriot‐Watt University Edinburgh UK
| | - Xiong‐Wei Ni
- EPSRC Centre for Continuous Manufacturing and Crystallization (CMAC), Centre for Oscillatory Baffled Applications (COBRA), School of Engineering and Physical SciencesHeriot‐Watt University Edinburgh UK
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13
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Exposito AJ, Bai Y, Tchabanenko K, Rebrov EV, Cherkasov N. Process Intensification of Continuous-Flow Imine Hydrogenation in Catalyst-Coated Tube Reactors. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.8b06058] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Antonio J. Exposito
- Stoli Catalysts Ltd., Coventry CV3 4DS, United Kingdom
- School of Engineering, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Yang Bai
- Stoli Catalysts Ltd., Coventry CV3 4DS, United Kingdom
- School of Engineering, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Kirill Tchabanenko
- School of Chemistry and Chemical Engineering, Queen’s University, Belfast BT9 5AG, United Kingdom
| | - Evgeny V. Rebrov
- Stoli Catalysts Ltd., Coventry CV3 4DS, United Kingdom
- School of Engineering, University of Warwick, Coventry CV4 7AL, United Kingdom
- Department of Biotechnology and Chemistry, Tver State Technical University, Naberezhnaya Afanasiya Nikitina 22, Tver 170026, Russia
| | - Nikolay Cherkasov
- Stoli Catalysts Ltd., Coventry CV3 4DS, United Kingdom
- School of Engineering, University of Warwick, Coventry CV4 7AL, United Kingdom
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Cherkasov N, Expósito AJ, Bai Y, Rebrov EV. Counting bubbles: precision process control of gas–liquid reactions in flow with an optical inline sensor. REACT CHEM ENG 2019. [DOI: 10.1039/c8re00186c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A 10$ optical liquid sensor allows precise control of reaction conversion in gas-consuming reactions for high selectivity and catalyst utilization.
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Affiliation(s)
- Nikolay Cherkasov
- School of Engineering
- University of Warwick
- Coventry CV4 7AL
- UK
- Stoli Catalysts Ltd
| | | | - Yang Bai
- School of Engineering
- University of Warwick
- Coventry CV4 7AL
- UK
| | - Evgeny V. Rebrov
- School of Engineering
- University of Warwick
- Coventry CV4 7AL
- UK
- Stoli Catalysts Ltd
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15
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Navarro-Fuentes F, Keane M, Ni XW. A Comparative Evaluation of Hydrogenation of 3-Butyn-2-ol over Pd/Al2O3 in an Oscillatory Baffled Reactor and a Commercial Parr Reactor. Org Process Res Dev 2018. [DOI: 10.1021/acs.oprd.8b00324] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Francisca Navarro-Fuentes
- EPSRC Centre for Continuous Manufacturing and Crystallization, Centre for Oscillatory Baffled Applications, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K
| | - Mark Keane
- EPSRC Centre for Continuous Manufacturing and Crystallization, Centre for Oscillatory Baffled Applications, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K
| | - Xiong-Wei Ni
- EPSRC Centre for Continuous Manufacturing and Crystallization, Centre for Oscillatory Baffled Applications, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K
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16
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17
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Tanimu A, Ganiyu SA, Muraza O, Alhooshani K. Palladium nanoparticles supported on ceria thin film for capillary microreactor application. Chem Eng Res Des 2018. [DOI: 10.1016/j.cherd.2018.01.040] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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18
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Highly Selective Continuous Flow Hydrogenation of Cinnamaldehyde to Cinnamyl Alcohol in a Pt/SiO2 Coated Tube Reactor. Catalysts 2018. [DOI: 10.3390/catal8020058] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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19
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Cherkasov N, Bai Y, Expósito AJ, Rebrov EV. OpenFlowChem – a platform for quick, robust and flexible automation and self-optimisation of flow chemistry. REACT CHEM ENG 2018. [DOI: 10.1039/c8re00046h] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
OpenFlowChem – an open-access platform for automation of process control and monitoring optimised for flexibility.
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Affiliation(s)
- Nikolay Cherkasov
- School of Engineering
- University of Warwick
- Coventry CV4 7AL
- UK
- Stoli Catalysts Ltd
| | - Yang Bai
- Stoli Catalysts Ltd
- Coventry CV3 4DS
- UK
| | | | - Evgeny V. Rebrov
- School of Engineering
- University of Warwick
- Coventry CV4 7AL
- UK
- Stoli Catalysts Ltd
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20
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Process Intensification of Alkynol Semihydrogenation in a Tube Reactor Coated with a Pd/ZnO Catalyst. Catalysts 2017. [DOI: 10.3390/catal7120358] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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21
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Liu Y, Gao P, Cherkasov N, Rebrov EV. Direct amide synthesis over core–shell TiO2@NiFe2O4 catalysts in a continuous flow radiofrequency-heated reactor. RSC Adv 2016. [DOI: 10.1039/c6ra22659k] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A core–shell TiO2@NiFe2O4 catalyst showed high activity and stability in direct amide synthesis with easy regeneration from coke by a treatment with a 30 wt% hydrogen peroxide solution.
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Affiliation(s)
- Yawen Liu
- School of Engineering
- University of Warwick
- Coventry CV4 7AL
- UK
| | - Pengzhao Gao
- College of Materials Science and Engineering
- Hunan University
- Changsha 410082
- China
| | | | - Evgeny V. Rebrov
- School of Engineering
- University of Warwick
- Coventry CV4 7AL
- UK
- Department of Biotechnology and Chemistry
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